Detachable tab.



P. MAOGREGOR..

DETAGHABLE TAB.

APPLICATION FILED APR.17. 1911.

1,067,531. Patented July 15, 1913.

2 SHEETS-SHEET 2.

UNITE-n 'sTATns PAT *Sermon DET'AGHABLE TAB.

To all 'whom t may qoncem.' l

Be it 'known thatI, PETER MAGREGOR, of

19 Strathcona avenue, in the city of Ottawa,

Provinceoil Ontario, 'Dominion 'of Canada,

`hveinvented certain new vandnseful Improvements in Detachable Tabs, of which purposes such as electrical signs, transparencles, .kindergarten books, etc.

`A further application of the inventionis to advertising purposes inthe'formation show cards, signs, price cards `andthe'like'; the tabs in Athis last containing suitable letters or iguresfin any desirable style, andI which when assembled in proper -`position on the base card or member, will'fform'suitable reading matter.

'Broadly speaking, theA invention may be said'to comprise a tab and a base member lhaving interlocking, ilexible tongues 'and a multiplicity of slitstoreceive fthe tongues and permittingtadjustmentiofthe tab to'a plurality of positions, the details of the invention being more Vitully set forth and vVdescribed in detail in the 'accompanyin'gsp'ecications and drawings. e

ln the drawings: vFigure l is a perspective; view of a filing case having. my improved tabs thereon. Fig. 2 is aperspective view of one of the tabs. Fig. 3 is'a'plan view of one of the tabs speci ally :adapted Lfor advertising purposes. Fig. iis a plan'view of a card'or base member with advertising tabs thereon. Fig. 5 is a perspective View showing'thetabs applied to index a-book or'the'like. Fig. 6 isa planfview; o--an alternative form4 of tab,

and also "of the tab attached in position.l

iigs. 7, 8, 9, 10 and 11 are alternative 4views of the tab, and also of the '-tab 'attached in position.

En the drawings, like characters of reference indicate corresponding part-s in each 'Specification of-Letters' Patent. *Application med-April 17,1911. --serimafeaoa rammed .nay 15, 1913.

Aswill be evidenced by the various embodiments f the invention shown in'the drawings, ItheZ tabs' may appearz in a variety of'forrns. The invention is characterized by tongues formed either on'the tab 0r on the member to which it is secured,fadapted to interlock with certain' of a plurality of suitable slits thus -in the, 'preferred 'embodiment ofthe inventi'on,`thebase member or sheet will beprovidedwith a serieso'f slits, and the tab with al plurality of tongues to take into certain'V ofthe-slits. Tn order to give' resiliency t'o the edges p'ftheslits, transverse slits areV preferably "formed therein, thus convertin'gfthe si'd'es ofthefslits into'lexible tongues. The portion 'of the .'members around the lslitmay if desired be reinforced l to' compensate for the A"weakening causedby punching' the slit. A Y

It isievidentthattheytab'may be formed of any vsuitable material and mayfcontain printing letters or numerals 'of any 'desired form.'

The tab-ispreerablyf designed'soV as to be `formed-at low cost by suitableipnnching machinery, andthe slits may 'also b'eformed by suitable lliand-'punching 'or `slotting machines,"and 'in cases where'it is tobe: applied to a"bo`ok or counting system, the slits may becon'veniently arranged to be formed by hand punhe'sl or'slot-ting devices.

"One of the cheapest and most. suitablelnaterials forthe formation'ofthe tab, irsthe this gves'the tongues the desireddegreeof flexibility.

Referring first to -Figs. land 2 of the invention, 'represents 'the tab z'which lhas tongues 10 'and 'll on'opposit'e sides thereof and integral therewith. AB represents a ilingicase'to'which the tab may be applied -and this isformed along its upper edge with la 'seriesioi slits 12 arranged'inat'ransverse row and 't 'such 'siz'e as nto receive .the tongues, the distance'betweenfthe Aslots being "an aliquot part of the distance between the sides of-thetab, whereby, the tabs may be 'ordinary :Manila paper or press board, as f ioo supported at any desired position.v Fleirif bility is given to the rrSides of the slits by forming transverse slits 13 and lfi across the upper and lower eXtremlties ofA the slits proper, 'the three'slitsthus forming a shape corresponding to the letter E, and forming on Ieach side of the slit, tongues which will give a little, to receive the tabs when the tongues are inserted, as shown in the drawmgs. y

Figs. 3 and 4 represent a modication of the invention in which a base member or card C is provided, having I-shaped slits arranged longitudinally and transversely in rows 15 and 16 respectively; tabs 17 being provided having tongues 18 and 191adapted to fit into certain of the slits. This form of the invention may be used for show cards, electric signs, transparencies and' the like, the tabs being in the form of alphabets, sets of numerals and the like, and being printed if desiredl in a variety of colors on opaque, transparent or translucent material thereby enabling novel effects to be produced.

In applying the invention to index a loose leaf system, loose leaf ledger or bound book, the edges of the leaves of the book are formed with a row 20 of slits, similar to those shown in Fig. 1. These slits may be formed in any suitable way, and if desired, a hand punch may be used for this purpose.

In the form vof tab shown in Fig. 6, tongues 2l and 22 are provided on opposite sides, and a tongue 23 at the bottom, the member to whichthe tab is to be applied having sets of three slits, 24, 25 and 26 toV receive the tabs, slits 24 and 26 being substantially at right angle to slit 25. The slits are provided with small end slits corresponding to the slits 13 and 14 shown in F ig. l, thus making the slits I shaped.

The form shown in Fig. 7, is similar to that shown in Fig. 6, only the side tongues 27 and 28 are .cut within the area of the original tab and extend in an opposite direction from the tongue 29, the slits being parallel. This effects economy in cutting the tab, and may be more suitable for some purposes. A

In the form shown in Fig. 8, a projecting tongue 30 is formed` on the tab and another tongue 31 is cut-in the body portion, two parallel slits 32 and 33 being formed in the member to which the tab is to be secured.

In the form shown in Fig. 9, both tongues 34 and 35 are formed in the body of the tab,

corresponding slits 36 and 37 being formed-- in the member to which the tab is to be secured. v

' In the form shown in Fig. 10, the parallel slits 38 and 39 are formed in the tab itself, while the member or sheet to which the tab is to be secured, has tongues 40 and 41 to extend into theslits.

In the form` shown in Fig. 11, the tab is formed with projections 42 and 43 at opposite sides of the bottom, and the member to which it is adapted to be secured is formed with two tongues 44 and 45 adapted to fit closely to opposite sides of the upper porabove construction, and many apparentlyy widely different embodiments of my invention, within the scope of the claims, constructed wit-hout departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

1. In combination an indexing sheet havin a series of spaced slits along the edge cut in such a manner Aas not to reduce the surface of the sheet, the portions between such slits normally lying in the 'same plane as the remainder of the sheet, and an indexing tab adapted to project beyond the edge of the sheet and having tongues adapted to have resilient engagement with the' slits, which tongues are adapted to lie flatly against the sheet.

2. An indexing or tabulating sheet of flexible resilient material having a series of slits along the edge adapted to receive indexing tabs and means forgiving extra re,- siliency to the side edges of the slit.

3. In combination an indexing sheet having a series of spaced slits along the edge cut in such a manner as not to reduce the surface of the sheet, the portions between the slits normally lyingin the same plane 'as the remainder of the sheet and an'indexing tab adapted to project beyond the edge of the V sheet and having tongues extending in opposite directions, said tongues being adapted to have resilient engagement with the' slits and to lie flatly against the sheet.

4. An indexing or tabulatin sheet having a series of spaced slits along t e edge whose side edges are rendered resilient by cross slits located one at each end of and extending across the spaced slits.

5. An indexing ortabulating sheet having a series of resilient tongues cut therein forming slits to receive tabs.

6. An indexing or tabulating sheet having a slit of substantially I-shape adapted to receive part of an indexingvtab and means to engage and hold another part of the indexino tab.

7. n indexing or tabulating sheet of 4resilient material provided with a pair of substantially Ill-shaped slits so positioned with relation to each other that they may receive an indexing tab between them.

8. 1n combinationl 'a tab having'tongues 'ble for indexing vpurposes when the sheet is on opposite sides and'a bottom to e and in a Vertical file or closed book. 10 an indexing sheet haying a series o sets of In Witness whereof I have hereunto set slits along the edge, each Vset including side my hand in the presence of two Witnesses.

5 slits adapted to engage the side tongues and PETER MACGREGGR.

.a bottom slit adapted to engage the bottom 'Witnesses: tongue, said tab being adapted to project RUSSEL B. Slsntoflrv beyond the edge. of the sheet and being visi- M. CULBERTSON. 

